AdBlock Plus extension....when you install it and configure it, flip on the switch for malware blocking.
Log in to your Google account. Now install it and log in on all devices you have, enable the "synch". Nice isn't it?
Sandbox is on by default
Only other thing I do is customize the toolbar...add the home button, show bookmarks bar for my common ones, and set it to start at Google each time I launch it.
Bookmarks